Best Mass Builder 2026

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Last Updated - 22.07.2026

Best Choice

01

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Vanilla, 16 Servings, 5.45kg, packaging may vary

12% Off

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

To prepare the Weight Gainer, mix 2 measuring spoons with 710 ml of water or plant milk, add fruit or nut butter for a tasty and high-calorie protein smoothie after exercise or between meals
Source EFSA Journal * 2010;8(10):1811; 2011; 9(6):2203; ** 2011; 9(7):2303; *** 2011; 9(7):2304
Serious Mass protein powder is available in 6 flavours (banana, chocolate peanut butter, chocolate, cookies and cream, strawberry and vanilla) and contains sweetener
Protein powder formula without added sugar with 25 vitamins and minerals and less than 5 g of fat per serving, plus over 250 g of carbonic hydrates to support muscle regeneration***
Low-fat Mass Gainer with over 1250 calories and 50 g protein per serving to support muscle growth plus* 3 g creatine monohydrate to support performance**

70,49 € 79,99 €(12% Off off)
02

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45kg, packaging may vary

21% Off

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

To prepare the Weight Gainer, mix 2 measuring spoons with 710 ml of water or plant milk, add fruit or nut butter for a tasty and high-calorie protein smoothie after exercise or between meals
Source EFSA Journal * 2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; *** 2011; 9(7):2305
Serious Mass protein powder is available in 6 flavours (banana, chocolate peanut butter, chocolate, cookies and cream, strawberry and vanilla) and contains sweetener
Protein powder formula without added sugar with 25 vitamins and minerals and less than 5 g of fat per serving, plus over 250 g of carbonic hydrates to support muscle regeneration***
Low-fat Mass Gainer with over 1250 calories and 50 g protein per serving to support muscle growth plus* 3 g creatine monohydrate to support performance**

66,99 € 84,99 €(21% Off off)
03

Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73kg, packaging may vary

18% Off

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Supplied as instant powder. Simply mix with water for a delicious and calorie-rich post-workout drink or take it between meals to promote muscle growth.
Provides calories: promotes muscle mass increase and replenishes the body's glycogen stores.
Packaging can vary: updated look, same trusted quality.
No added sugar. Contains 24 vitamins and minerals per serving.
Muscle-building preparation with 1,250 calories and 50 g of protein per serving and less than 5 g of fat.
Great value for money: Serious Mass protein powder has a high calorie content and contains high-quality protein.

40,80 € 49,99 €(18% Off off)
Value for Money

04

Mammut

Mammut Nutrition Crash Weight Gainer Powder Cookies - 4.5 kg - 518 kcal/shake for weight gain - 80% carbohydrates - 4-component protein - Ideal for endurance and performance athletes

24% Off

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ideal for endurance and professional athletes.
High carbohydrate content with 80% carbohydrates (vanilla).
Contribution to weight gain.
3-component carbohydrate complex and 4-component protein complex.
1410 kcal per 3 shakes.

40,09 € 52,99 €(24% Off off)
05

Mutant

Mutant Mutant Mass (2270 g) Strawberry Banana - Weight Gain - Without Creatine

23% Off

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

DELICIOUS FLAVORS Choose your favourite from a variety of delicious flavours and ensure that each shake is a tasteful and nutritious moment.
CONTAINS MUSCLE BUILDING - Contains 56g of protein for effective support.
CONCENTRATED ENERGY Provides 1,100 calories per serving with four measuring spoons, ideal for optimal mass gains.
CLEAN & PURE Like all of our products, MUTANT MCT oil is made in a pure extraction process, ensuring a clean source of fast and lasting energy for your workout and beyond.
BCAA 9.7 with Absorption Enhancer - This product is formulated with a proven and patented absorption booster to ensure optimal use of BCAAs to support muscle growth and recovery after exercise.

23,95 € 30,99 €(23% Off off)
06

Weider

WEIDER Mega Mass 4000 Weight Gainer Shake for Growth, Chocolate, with Protein, Creapure Creatine Monohydrate, Complex Carbohydrates, Vitamins and Minerals – Muscle Building Shake, 3 kg

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Upgrade your performance: The daily intake of 3 g creatine increases physical performance during speed strength training as part of short-term intensive physical activity.
Quality promise: Sports and health are our passion. Our mission is to provide our highly valued, loyal customers with the best possible quality products.
Optimal solution for the hard gainer: With its high-calorie and protein-rich formula, our Mega Mass 4000 Weight Gainer is the ideal complement for muscle building and weight gain.
First-class composition: Our Mega Mass 4000 is rich in high-quality protein (whey, casein, chicken egg), complex carbohydrates and important micronutrients.
Extremely delicious: Whether chocolate, vanilla or strawberry, the classic milkshake flavours have never been so delicious and creamy. The powder tastes absolutely delicious in both milk and water.

60,99 €
07

GEN GERMAN ELITE NUTRITION

Gen German Elite Nutrition Clean Weight Gainer - 3 kg Powder

19% Off Limited Time Deal

19% Off

Limited Time Deal

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With extra glutamine, bromelaine and lactase: our gainer has been specifically optimised, with an additional 5 g L-glutamine, which corresponds to a total amount of 17,478 mg glutamine per serving. The formula is complemented by 563 F.I.P. Bromelain and 6,750 FFC lactase units per serving. The combination of bioactive enzymes and high-quality protein makes this shake a thoughtful addition to your diet, more than just a classic mass shake.
With complex carbohydrates: While many mass gainers contain large amounts of sugar and inferior fillers, the Clean Mass Gainer relies on quality. High-quality proteins, complex carbohydrates from oats and rice flour as well as enzymes make it the ideal basis for a balanced diet. Each serving (150 g powder) delivers 560 kcal, including 86 g of high-quality carbohydrates with only 4 g sugar, 36 g protein and 6 g fat.
High protein: our gainer relies on ultra-filtered whey protein concentrate from German pasture farming. With 36 g of high-quality protein per shake, it offers a first-class source of protein.
From athletes for athletes: since 2016, German Elite Nutrition has been producing high-quality dietary supplements in German brand quality. Our products are made from selected raw materials to strict quality standards, developed with a focus on reliability and purity.
Delicious taste: 6 delicious varieties with pleasant sweetness, without aspartame or questionable additives.

38,24 € 44,99 €(19% Off off)
08

ALPHAPOWER FOOD

Alphapower Food Muscle Weight Gainer, Mega Muscle Bulking and Muscle Building Protein, Carbohydrate Powder Shake for Hardgainers, 5 kg, Chocolate Cookie, Creatine, Whey, BCAA, MCT Oil.

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Vegetarian. nutrient- and calorie-rich, multi-phase carbohydrate system (vegetable starch of high molecular weight/dextrose, whey protein, micellar casein protein; powder shake.
Performance, mass: whey muscle weight gainer 8,500– mega muscle mass and muscle building (1) – protein-carbohydrate powder – shake for gaining weight in the bulking phase, strength-building phase and muscle-building phase.
Highly soluble, easy to mix, with delicious flavour.
Bulk and muscle-charging matrix: Ingredient-laden daily intake quantity. Extremely high dosage, high quality – calorie-loaded and super charged.
7500 mg creatine complex (creatine citrate,tri-malate, phosphates); complete amino acid profile with 18 amino acids; 6600 mg BCAA complex; arginine and alpha ketoglutarate (AAKG), 3300 mg; MCT oil 9.3 g.

55,98 €
09

Bulk

Bulk Complete Mass Gainer, Vanilla, 16 Servings, 42 g Protein per Serving, 84 g Carbohydrates, 500 kcal per Serving, Calorie Rich Gainer, Supports Muscle Building and Maintenance

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SUPPORTS MUSCLE BUILDING The balanced blend of protein and carbohydrates promotes fat-free muscle gain.
Mass building from a leading sports nutrition brand
High-calorie formula to support your mass phase: with 574 kcal per serving, it provides the energy you need for effective muscle building.
High protein content for optimal muscle building: each 155 g serving provides 42 g of high-quality protein to support your daily fitness goals.
Helps build and maintain muscle mass; the perfect protein shake for real "hard gainers" or for those looking to gain weight
Delivers an impressive 500 kcal and 42 g protein per serving
Delivers 84g of carbohydrates
Delicious flavours with easy blend for maximum comfort.
Available in a range of flavours and sizes
A simple and practical option for anyone who wants to increase their calorie and nutrient intake comfortably.

37,99 €
10

Dymatize

Dymatize Super Mass Gainer Rich Chocolate 2943g - Weight Gainer Powder + Carbohydrates, BCAAs and Casein

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Specially developed for body builders, hard gainers and powerlifters and your special requirements - especially in construction, the protein weight gainer ensures an adequate calorie supply and nutrient intake
Per serving, the Super Mass Gainer provides you with up to 243 g carbohydrates, 52 g protein, 11-12 g BCAAs and 3 g fine creapure creatine as well as 5 contained vitamins that contribute to a reduction of fatigue
Our solid combination of creatine, carbohydrates, BCAAs and proteins provides valuable nutrients to meet the special requirements in the building phase
For ideal results in weight gain daily after training, mix a portion with 700 ml of water. The mass protein shake is gluten-free and also suitable for vegetarians
According to the informed choice, all substances in the Mass Gainer powder meet the highest standards - so athletes are protected over product quality, especially during the competition period

49,99 €